i have grandchildren. >> reporter: as for the 0 plus office buildings including google's where the epa found higher than acceptable levels of tce, these test results show that some levels of tce with air conditioning systems in some buildings were 26 times higher than expected safe levels. the epa now says that those systems are in place to keep those vapors outside the buildings and google tells us they may take this matter very seriously. they've already taken measures to ensure that those buildings and those work areas are now safe. raj? jessica? >> you see the number on your scre screen. 888-996-tips or send us an e-mail to the unit. >>> new tonight at 6:00, a second woman has been charged in the high-profile killing of a multimillionaire. 32-year-old katrina marie was ararnd on charges today and held without bail. police arrested her and detectives claim she is a prostitute who was frequently hired by the victim who was killed in a home invasion. her brother is one of three men charged in the case as well. prosecutors aren't commenting how her role took place in the crime. another